Coal-burning brooder stove



Ian. 15, 1929.

R. D. SARVER COAL BURNING BROODER STOVE 2- Shets-Shet 1 Filed ocha, 1925 I a v gvwm ucw 7 253 807797" 35 1 W! W 6cm mad R a www- Lg N A," I. RT 1 iw R. D. SARVER COAL BURNING BROODER STOVE Filed Oct. 8, 1925 2 Sheets-Sheet 2 61 .57 g l 7 $5 w I gwuzntoc Pqyfl Jar e7" UNETEEP aTA'iES rarer orrice.

RAY D. SABVER, OF OWATONNA, MINNESOTA, ASSIGIIOR, BY I/IESEE ASSIGNYMENTS, TO HUDSON MANUFACTURING COMPANY, A CORFOEATTOH OF MINNESGTA.

COAL-BURNING Application filed October It is the object of this invention to provide in a stove adapted to burn solid fuel in heating a brooder, means for minimizing the work required of an attendant to insure continuous operation of the stove.

A further object of this invention is to provide a brooder stove adapted to improve the ventilation within a-hover bycontinuously withdrawing foul air from within the same, even when the stove is checked, as it is when the greater part of the dra t through the grate is out 05.

Another object is to provide in an automatically controlled, coal burning stove an improved arrangement of check doors and fuel hopper whereby complete combustion of the fuel is obtained and continuous and uniform operation over an extended period of time is insured.

This invention also includes certain other novel features of construction, which will be more fully pointed out in the following specification and claims.

My invention will behest understood by reference to the accompanying drawings, in which Figure 1 is an elevation of the device showing the thermostat side of the stove with the hinged hover sections raised and a portion of the 'upper part of the stove broken away to show the interior construction; Fig. 2 is acentral, vertical section of the stove on an enlarged scale, fragmentary portions only of the hover being shown and Fig. 3 is a plan view of the thermostat detached from the stove.

As shown in the drawings, my improved stove has a substantially cylindrical body port-ion 5 constituting a combustion chamber 6 above a grate 7. A rectangular base f part 8 forms an ash space beneath the grate 7. The base part 8 has a door 9 at one side for the removal of the ashes, while at the opposite side is formed a draft opening 10 having a door 11, pivoted at its lower edge. This door 11 is normally maintained in partially open position by a counter weight 12 supported on a suitable arm extending outward from said door.

Above the combustion chamber 6 the stove is formed with an arch or partition 13 extend ing in an arc downward from one side of a flue 14. This partition 18 divides the upper part of the stove into a hopper 15 and a fine extension 16. As clearly shown in Figure 1,

BROODEE STQVE.

8, 1925. Serial No. 61,316.

the flue extension 16 has substantially vertical side walls 17. The upper portion of the stove flares outward and has a conical cap 18, formed with an opening 19 at one'side for the admission of fuel to the hopper 15. A suitable door 20 is provided tor the opening 19. Supported on the flue 14': is a conical hover divided into rigid sections 21 and hinged sections 22, arranged to allow access to opposite sides of the stove.

Extending into a side of the line extension 16 is a check draft opening 23 having a door 24; which is pivoted at its lower edge upon hinges 25. This door 2 1 is so arranged that it swings inward when opened and obstructs the passageway through the fine extension 16. A counter weight 26 is mounted on the door 2% to maintain the'same in vertical or closed position. I

To automatically operate the draft doors 11 and 24, I provide a thermostat, which is positioned beneath the hover. This thermo- 1 stat consists of a series of discs 27, adapted to expand and operate a lever 28 when the temperature in the hover exceeds that required for the health of the chicks. The lever 28 is formed with laterally projecting arms 29, which extend above the pairs of discs 27, and are adapted to be operated thereby. The thermostat issupported upon a substantially horizontal bar 30, carried on the upper end of a bracket 31 and the outer end of the lever 28 has a fulcrum consisting of a set screw 32. This horizontal bar is preferably constructed of heat insulating material, so that the thermostat is not affected by the temperature of the stove. The inner end of the lever 28 is operatively connected to the draft doors 11 and 2 1 by a rod 33. A damper 34c of common type, adapted to be operated by hand, is placed in the flue 1 1 to afford further means for checking the fire.

Operation.

In operation, one of the hinged hover sections 22 may be raised to allow feeding coal or other solid fuel through the door 20 into the hopper 15. The thermostat is adjusted so that the temperature within the hover is maintained at a degree calculated to promote the health of the chicks. With such adjustment, the door 11 will be normally in partially open position and the door 2 1 will be closed, as shown in Figure 2. Now if the hover should become heated to a higher temperature, the discs 27 will operate the lever 28 to open the door 24 and close the door 11. When this occurs, it will be obvious that the opening in the flue extension 16 will be contracted by the door 24 and air will. be withdrawn from the upper part of the brooder chamber into the opening 23. Thus, proper ventilation is al ways maintained in the brooder.

By my arrangement of the inwardly opening door 24, the suction which is produced by reason of the check opening is prevented from increasing the draft through the combustion chamber 6. An unusually effective check is thus applied. It will. be further noted that the partition 13 between the hop per and flue extension 16 extends well down into the combustion chamber. This insures complete combustion of any gases which collect in the hopper 15, because such gases are drawn downward into the hot portion of the combustion chamber, where they are ignited and consumed. The sloping form of battle or partition 13 causes soot and other solid matter which would otherwise collect thereon to fall into the combustion chamber and be consumed. I

I have found that the stove of this invention can be relied upon to operate without at tention for many hours, unaffected by external weather or wind conditions, whereas other coal burning stoves of the small type suitable for use in brooders are affected by the wind to such an extent that the supply of fuel in the hopper is frequently burned with in a few hours, so that the flre is extinguished with resulting chilling and injury to the chicks. It will be noted that the ventilation in the brooder is greatly improved by reason of the location of the check draft opening beneath the hover.

Having described my invention what I claim as new and desire to protect by Letters Patent is 1. In a brooder stove adapted to consume solid fuel, a flue passageway extending downward within said stove near one side thereof, said stove having a check draft opening extending through said side and communicating with said. passageway, a door adapted to close said check draft opening andarranged to open inward and thereby partially close,

ing through the side thereof into said flue extension and a door constituting a closure for said opening. 7

The combination with a stove adapted to consume solid fuel, of a hover extending outward and downward from the upper part of said stove and forming an annular brooder chamber around the stove, a flue extending upward from the top of said stove, a partition arranged in the upper part of said stove to separate the same into a hopper for fuel at one side and a flue extension at the other side extending into said combustion chamber, said stove having a check draft opening extending through'the side thereof into said flue extension and a door constituting a closure for said opening arranged to open inward to reduce the opening in said flue extension when in open position. 4. The combination with a stove adapted to consume solid fuel, of a hover extending outward and downward from the upper part of said stove and forming an annular brooder chamber around the stove, an enlarged upper part of said stove beneath said'hover, a fine extending upward from the top of said stove, a partition arranged in the upper part of said stove to separate the same into a hopper for fuel at one side and a flue extension at the other side extending into said combustion chamber, said stove having a cheok'draft opening extending through the side thereof into said flue extension and a door constituting a closure for said opening arranged to open inward. I

In testimony whereof, I have hereunto signed my name to this specification.

RAY D. SARVER. 

